1,720,967 research outputs found
The impact of increased physical access through the opening of a superstore on fruit and vegetable consumption
No full textSIGLEAvailable from British Library Document Supply Centre- DSC:DXN059831 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Deprivation, diet, and food-retail access: findings from the Leeds 'food deserts' study
No full textWithin a context of public policy debate in the United Kingdom on social exclusion, health inequalities, and food poverty, the metaphor of the 'food desert' caught the imagination of those involved in policy development. Drawing from a major cross-disciplinary investigation of food access and food poverty in British cities, the authors report in this paper findings from the first 'before/after' study of food consumption in a highly deprived area of a British city experiencing a sudden and significant change in its food-retail access. The study has been viewed as the first opportunity in the United Kingdom to assess the impact of a non-healthcare intervention (specifically a retail-provision intervention) on food-consumption patterns, and by extension diet-related health, in such a deprived, previously poor-retail-access community. The paper offers evidence of a positive but modest impact of the retail intervention on diet, and the authors discuss the ways in which their findings are potentially significant in the context of policy debate
Assessing the impact of improved retail access on diet in a 'food desert': a preliminary report
No full textIf poor food retail access in deprived areas of British cities is linked, as suggested in many of the policy debates of the late 1990s, via compromised diets/undernutrition to poor health and widening health inequalities, what is the impact of a sudden and significant improvement in food retail access likely to be on the food consumption patterns of residents? In this paper, we describe and provide preliminary results from the first-ever UK study of a major retail provision on diet in a 'food desert' - a 'before/after' study of food consumption patterns in the highly deprived, previously poor food retail access area of Seacroft, Leeds, experiencing a sudden and significant change in its food retail access as a result of the opening of a large superstore by the UK's leading food retailer. We suggest that this study has the potential to provide some of the missing links between poor food retail access, compromised diets/undernutrition, poor health and compound social exclusion that characterised statements on the topic of 'food deserts' in the health inequalities and social exclusion debates of the late 1990s, and that its findings may have significant implications for policy debate
Life in a 'food desert'
No full textThis paper forms part of the 'Food Deserts in British Cities' project. It reports on the findings of a series of focus groups conducted with residents in the Seacroft 'food desert' (in Leeds) in the period prior to a major improvement in their food retail accessibility. The paper explores individual food shopping behaviour, consumption patterns and attitudes towards a healthy diet and, in so doing, begins to develop an understanding of how different demographic groups adapt to living within a 'food desert'. The focus is on the perceived economic and physical constraints of residents in the area, but interwoven with this are other considerations such as motivation to consider health, family responsibilities and individual smoking status
The Leeds "food deserts" intervention study: what the focus groups reveal
No full textThis paper outlines the research agenda of the food deserts in British Cities project, and reports findings from a set of qualitative focus group studies conducted following a major retail provision intervention in a low-income, deprived area of Leeds. It explores the impacts of the transformation of physical access to full-range retailing in the area, and assesses the views of the residents who had switched their main food source as a result of the intervention compared to those who had not. Finally, it interrogates residents' perceptions of the impact (if any) of the intervention on their food consumption habits and their potential to eat a more healthy diet
Randomised controlled factorial trial of dietary advice for patients with a single high blood pressure reading in primary care
No full textObjective: To assess the effect of brief interventions during the "watchful waiting" period for hypertension.Design: Factorial trial.Setting: General practice.Methods: 296 patients with blood pressure > 160/90 mm Hg were randomised to eight groups defined by three factors: an information booklet; low sodium, high potassium salt; prompt sheets for high fruit, vegetable, fibre; and low fat.Main outcome measures: Blood pressure (primary outcome); secondary outcomes of diet, weight, and dietary biomarkers (urinary sodium:potassium (Na:K) ratio; carotenoid concentrations).Results: Blood pressure was not affected by the booklet (mean difference (diastolic blood pressure) at one month 0.2, 95% confidence interval 1.6 to 2.0), salt (0.13; 1.7 to 2.0), or prompts (0.52; 1.3 to 2.4). The salt decreased Na:K ratio (difference 0.32; 0.08 to 0.56, P = 0.01), and the prompts helped control weight (difference 0.39 (0.85 to 0.05) kg at one month, P = 0.085; 1.2 (0.1 to 2.25) kg at six months, P = 0.03). Among those with lower fruit and vegetable consumption (< 300 g per day), prompts increased fruit and vegetable consumption and also carotenoid concentrations (difference 143 (16 to 269) mmol/l, P < 0.03) but did not decrease blood pressure.Conclusion: During watchful waiting, over and above the effect of brief advice and monitoring, an information booklet, lifestyle prompts, and low sodium salt do not reduce blood pressure. Secondary analysis suggests that brief interventions—particularly lifestyle prompts—can make useful changes in diet and help control weight, which previous research indicates are likely to reduce the long term risk of stroke
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
- …
